# CVE-2026-83217: Oracle Siebel CRM End User auth bypass in Open UI

Source: https://junglewise.ai/threats/cve-2026-83217-oracle-siebel-crm-end-user-auth-bypass-in-open-ui  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-83217 · Severity: high · CVSS 7.1 · Published 2026-09-15

Oracle Siebel CRM End User is a customer relationship management platform used by enterprises to manage sales, service, and customer interactions. A vulnerability in the Open UI component allows low-privileged network attackers to read sensitive customer and business data or modify records without proper authorization, potentially exposing confidential information or corrupting critical business data.

Technologies: [Oracle Siebel CRM End User](https://junglewise.ai/threats/technologies/siebel-crm-end-user). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-83217 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83217 being exploited in the wild.

**How severe is CVE-2026-83217?** High severity, with a CVSS score of 7.1, published 15 September 2026.

**Which products and versions are affected?** Oracle Siebel CRM End User 17.0-26.7.

**Is there a fix for CVE-2026-83217?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-83217 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-83217?** Check whether you run Oracle Siebel CRM End User at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This is an authorization bypass or privilege escalation vulnerability in the Open UI component of Oracle Siebel CRM End User. The vulnerability is easily exploitable by a low-privileged attacker with network access over HTTP, requiring no user interaction. Successful exploitation grants unauthorized read access to critical data and unauthorized write/delete access to some accessible data. The vulnerability affects versions 17.0 through 26.7. A patch or mitigation is likely available from Oracle; consult the official security bulletin for remediation details.

## Affected products

- Oracle Siebel CRM End User 17.0-26.7

## Timeline

- 2026-09-15: disclosed

## References

- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.html)

## Related threats

- [Oracle Siebel CRM End User unauthorized data access in Communications Panel](https://junglewise.ai/threats/cve-2026-91445-vulnerability-in-the-siebel-crm-end-user-product-of-oracle-siebel)
- [Oracle Siebel CRM End User unauthorized data access in Open UI](https://junglewise.ai/threats/cve-2026-91432-vulnerability-in-the-siebel-crm-end-user-product-of-oracle-siebel)
- [Oracle Siebel CRM End User unauthorized data access in Open UI](https://junglewise.ai/threats/cve-2026-91431-vulnerability-in-the-siebel-crm-end-user-product-of-oracle-siebel)
- [Oracle Siebel CRM End User Cross-Site Request Forgery in Open UI](https://junglewise.ai/threats/cve-2026-91428-vulnerability-in-the-siebel-crm-end-user-product-of-oracle-siebel)
- [Oracle Siebel CRM End User unauthorized access in Open UI](https://junglewise.ai/threats/cve-2026-91412-vulnerability-in-the-siebel-crm-end-user-product-of-oracle-siebel)